diff --git a/solver/Solver2017.py b/solver/Solver2017.py
index 2e05f2f7c12b6cd964ea586b04fa7d202778f7ca..057d9733ed06770931433437d9609bf29e6998f3 100644
--- a/solver/Solver2017.py
+++ b/solver/Solver2017.py
@@ -116,7 +116,7 @@ def solve(boardstr, seed=12345, zero_padding=False, option=dict()):
 
     # MMIO 接続 (pynqrouter)
     if isinstance(PL.ip_dict[IP][0], int):
-        mmio = MMIO(PL.ip_dict[IP][0], PL.ip_dict[IP][1], 16)
+        mmio = MMIO(PL.ip_dict[IP][0], PL.ip_dict[IP][1])
     else:
         mmio = MMIO(int(PL.ip_dict[IP][0], 16), int(PL.ip_dict[IP][1], 16))